As aquaculture moves offshore and green, healthy farming practices become paramount, a natural feed additive—Yeast Cell Wall—is emerging as an effective solution to replace antibiotics and ensure aquatic product safety.

What is Yeast Cell Wall?

      Derived from Saccharomyces cerevisiae, yeast cell wall is a natural extract constituting about 20%-30% of the cell's dry weight. Its core active components are Beta-Glucans (≈30%) and Mannan Oligosaccharides (MOS) (≈30%). These two substances work synergistically through non-pharmaceutical biological mechanisms to build a health defense line for aquatic animals.

Three Core Advantages

The benefits of yeast cell wall are mainly reflected in three irreplaceable aspects:

1. Enhances Immunity Proactively
   Beta-Glucans can specifically activate immune cells like macrophages in fish and shrimp, boosting the organism's own non-specific immunity and making it more resistant to pathogens. Research shows it can grant salmon intestinal mucus significant virus-inhibiting capability.

2. Adsorbs and Removes Pathogens, Cleanses Gut
   MOS acts like a "magnet" in the intestines, competitively binding and carrying away harmful bacteria and mycotoxins, preventing their colonization and damage, thereby purifying the internal environment and reducing disease incidence.

3. Green, Safe, and Eco-Friendly, Replaces Antibiotics
   As a purely natural component, it leaves no residues and causes no drug resistance. It effectively reduces reliance on antibiotics during farming, making it a key tool for achieving ecological aquaculture and producing safe aquatic products.

Application Effectiveness and Prospects

      In practical applications, adding yeast cell wall products to feed for species like California bass and shrimp has proven that it significantly improves animal immune and antioxidant indicators without compromising growth performance. With national policies actively promoting deep-sea aquaculture and high-quality fishery development, the use of such green additives will become even more widespread.

      In summary, yeast cell wall provides an innovative pathway for aquaculture to fundamentally improve animal health and ensure food and environmental safety through the dual biological approaches of "enhancing immunity + cleansing the intestines." It is a vital driver for the sustainable development of the industry.